Abstract: A light-emitting module includes: a support base having a plurality of placement surfaces arranged in a first direction; a plurality of semiconductor laser elements disposed on respective ones of the plurality of placement surfaces, each semiconductor laser element configured to emit laser beams; a plurality of first mirror members, each having a first reflective surface configured to reflect and change a traveling direction of the laser beams from a respective one of the semiconductor laser elements; and a plurality of second mirror members, each having a second reflective surface, at least a portion of the second reflective surface being positioned above at least a portion of a respective one of the first reflective surfaces, and the second reflective surface being configured to reflect, in a second direction intersecting the first direction, the laser beams reflected by the respective first reflective surface.

Abstract: A family of tire sizes are classified into plural groups every tact time and only sizes belonging to the same group are selected from the family of tire sizes and allocated in a plurality of vulcanization stations vulcanizing tires, whereby tires of plural sizes can be vulcanized at a mixed state for a given tact time without requiring middle stock for green tires.

Abstract: A manufacturing method of a support body for pneumatic run-flat tires, which can make the structures of a mold and a vulcanizer simpler. A metallic support portion has three parts including a center portion and outside portions of both sides. A rubber leg portion is vulcanized and formed so as to be integrated to the outside portion. The center portion and the outside portions are coupled by welding or the like. A mold to form and vulcanize the leg portion can therefore be made smaller. Moreover, since the left and right leg portions can be vulcanized and formed by a single mold, the structure of the mold is simpler.

Abstract: In the lamination of band-shaped uncured rubber materials to form a laminated rubber member having a given sectional shape by helically winding a band-shaped uncured rubber material extruded through an extruder on a rotating support, two or more rubber compositions indicating different moduli after the curing are used as a rubber material fed to the extruder, and a first rubber material is extruded through the extruder and helically wound on the support to form a first rubber layer, and the first rubber material and a second rubber material are continuously and simultaneously through the extruder so as to stepwise or gradually increase a blending ratio of the second rubber material to the first rubber material while holding the same extrusion sectional shape and helically wound on the first rubber layer while overlapping with at least a part of the first rubber layer to form a second rubber layer.

Abstract: A family of tire sizes are classified into plural groups every tact time and only sizes belonging to the same group are selected from the family of tire sizes and allocated in a plurality of vulcanization stations vulcanizing tires, whereby tires of plural sizes can be vulcanized at a mixed state for a given tact time without requiring middle stock for green tires.

Abstract: A rubber composition for use in a tread of a pneumatic tire comprises particular amounts of particular nitrogen-containing compound and particular proton acid or derivative thereof based on 100 parts by weight of rubber ingredient, and develops an excellent gripping performance.

Abstract: A silica-blended rubber composition comprising 100 parts by weight of sulfur-vulcanizable rubber blended with 10 to 100 parts by weight of silica, 3 to 20% by weight of a silane coupling agent based on the silica and 1 to 20% by weight of sodium borate based on the silica. An alkoxy group-containing silane coupling agent is preferred as the silane coupling agent, and sodium tetraborate is preferred as the sodium borate.

Abstract: Disclosed are a rubber composition having an improved charging property which comprises 100 parts by weight of rubber component containing diene rubber of 90 parts by weight or more, and a filler of 30 to 120 parts by weight and a nonionic surfactant or phosphoric ester of 0.2 to 8 parts by weight, and a pneumatic tire characterized by that the above rubber composition having an improved charging property is used for the tread parts of the pneumatic tire.The typical examples of the nonionic surfactant and phosphoric ester are an adduct of ethylene oxide of 2 to 30 moles to linear, cyclic or branched, and saturated or unsaturated, and monohydric or polyhydric aliphatic alcohol having carbon atoms of 6 to 25, or an adduct of ethylene oxide of 2 to 30 moles to alkylphenol, and the compounds represented by the following formula (V): ##STR1## wherein R.sup.

Abstract: A rubber composition which comprises(1) 100 parts by weight of a rubber containing 60 parts by weight or more of styrene-butadiene rubber,(2) 20 to 180 parts by weight of a softening agent,(3) 0.5 to 5 parts by weight of at least one member selected from the group consisting of a thiuram compound of the following formula, ##STR1## where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently selected from the group consisting of straight chain alkyl groups and branched chain alkyl groups having 7 to 12 carbon atoms, and a dithiocarbamate compound of the following formula, ##STR2## where R.sub.5 and R.sub.6 are independently selected from the group consisting of straight chain alkyl groups and branched alkyl groups having 7 to 12 carbon atoms, M is a divalent or higher valent metal and n is a number which is the same as the number of the valence of the metal M,(4) 0.1 to 2.5 parts by weight of a guanidine vulcanization accelerator, and(5) 0.5 to 5 parts by weight of a benzothiazole vulcanization accelerator.

Abstract: A low heat generation type rubber composition is disclosed, which comprises at least one rubber selected from the group consisting essentially of natural rubber and a synthetic diene rubber, a reinforcing filler, and a thiadiazole compound expressed by the following general formula: ##STR1## in which R.sub.1 and R.sub.2, which may be the same as or differ from each other, denote a mercapto group, an amino group and a trifluoromethyl group. The reinforcing filler and the thiadiazole compound are contained in amounts of 20 to 150 parts by weight and 0.1 to 10 parts by weight, respectively.

Abstract: A rubber composition containing a specifically limited imidazole compound or imidazoline compound, or benzimidazole or its specifically limited derivative has a large tan .delta. at high temperature range, and a tire having a tread using such rubber composition is prevented from being lowered in the value of tan .delta. due to the temperature rising during the running and has an improved grip performance during the high speed running. The use of Bronsted acid in combination with the imidazole, imidazoline or benzimidazole can obviate the drawback of poor scorch resistance of a rubber composition containing the imidazole, imidazoline or benzimidazole alone, and the resulting rubber composition has a very large tan .delta. at high temperature range, and a tire having a tread using the rubber composition has a remarkably improved grip performance during the high speed running.